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CHHAYA PUBLICATION-QUESTION PAPER -2018-WBJEE
- If the following three linear equations have a non-trivial solution, t...
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- On R, a relation p is defined by xpy if and only if x-y is zero or irr...
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- int dx/(secx+cosx)
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- If f:Rto R be defined by f(x)=e^x" and " g:R toR be defined by g(x)=x^...
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- In order to get a head at least once with probility ge0.9, the minimum...
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- A student appears for tests, I,II and III. The student is successful i...
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- If 0leAle(pi)/(4)," then " tan^(-1)((1)/(2)tan2A)+tan^(-1)(cotA)+tan^(...
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- The angle between a pair of tangents drawn from a point P to the circl...
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- A point P lies on a line through Q(1,-2,3) and is parallel to the line...
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- The foot of the perpendicular drawn from the point (1,8,4) on the line...
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- A ladder 20 ft long leans against a vertical wall. The top end slides ...
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- For 0leple1 and for any positive a,b let I(p)=(a+b)^p,J(p)=a^p+b^p: th...
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- Let vecalpha=hati+hatj+hatk,vecbeta=hati-hatj-hatk" and "vecgamma=-hat...
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- Let vecalpha,vecbeta,vecgamma be three unit vectors such that vecalpha...
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- The least positive integer n such that ({:(cos""((pi)/(4)),sin""((pi)/...
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- Let p be a relation on N, the set of natural numbers, as p={(x,y)neN x...
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- If the polynomial f(x)=|{:((1+x)^a,(2+x)^b,1),(1,(1+x)^a,(2+x)^b),((2+...
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- Let f(x)={{:(-2sinx" if "xle-(pi)/(2)),(Asinx+B" if "-(pi)/2ltxlt(pi)/...
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- The normals to the curve y=x^2+1, drawn at the points with the absciss...
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- The equation xlogx=3-x
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